I have seen the new feature about logical clusters
(the onecluster command) but it wasn't clear what
capacities it really brings. Is there any benefit to
defining more than one cluster with the onecluster command,
if so, what?
Steve
On Fri, 12 Nov 2010, Tino Vazquez wrote:
Hi Ivan,
We are currently working on different levels of fault tolerance. We
want to have (in the short term) a best practices document to achieve
fault tolerance with OpenNebula.
About a multi-cluster deployment architecture, there is currently two
ways of achieving this:
* Logic clusters: this is a new feature introduced in the 2.0 version.
See [1] for details.
* Federation can be achieved using plugins, where for instance the
Amazon EC2 driver and server is used to federate different clusters,
each one of them managed by one OpenNebula instance.
Hope it helps,
-Tino
--
Constantino Vázquez Blanco | dsa-research.org/tinova
Virtualization Technology Engineer / Researcher
OpenNebula Toolkit | opennebula.org
On Mon, Oct 25, 2010 at 2:17 PM, Ivan Frain <[email protected]> wrote:
Hi everybody,
I would like to know if there is a failover mechanism for oned ? I'am sure
that it is possible to manage this failover using MySQL as database backend
on a remote server but I would like to have more details: should we use
active/standby mechanism with heartbeat, is there any guidelines to do this
...
Moreover, in the case of oned failure, what are the guarantees about its
state and the recovery?
I didn't find any documentation in the OpenNebula web site this is why I
post my question here.
I have another question concerning a multi cluster management. I understand
the deployment of opennebula in one cluster with one frontend node on which
'oned' is installed but what could be a deployment with several physical
clusters cooperating each one running opennebula toolkit? Can we put in
place a kind of hierarchy like Eucalyptus: cloud controller, cluster
controller and so on ?
Thank you in advance.
Best regards,
--
Ivan Frain
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Steven C. Timm, Ph.D (630) 840-8525
[email protected] http://home.fnal.gov/~timm/
Fermilab Computing Division, Scientific Computing Facilities,
Grid Facilities Department, FermiGrid Services Group, Assistant Group Leader.
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